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cpuidle: powerpc: read mostly for common globals 

Ensure these don't get put into bouncing cachelines.

Reviewed-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
hifive-unleashed-5.1
Nicholas Piggin 2017-06-14 23:02:40 +10:00 committed by Michael Ellerman
parent 3fc5ee927f
commit 624e46d035
2 changed files with 9 additions and 9 deletions
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10
drivers/cpuidle/cpuidle-powernv.c
View File

@ -32,18 +32,18 @@ static struct cpuidle_driver powernv_idle_driver = {
.owner = THIS_MODULE,
};
static int max_idle_state;
static struct cpuidle_state *cpuidle_state_table;
static int max_idle_state __read_mostly;
static struct cpuidle_state *cpuidle_state_table __read_mostly;
struct stop_psscr_table {
u64 val;
u64 mask;
};
static struct stop_psscr_table stop_psscr_table[CPUIDLE_STATE_MAX];
static struct stop_psscr_table stop_psscr_table[CPUIDLE_STATE_MAX] __read_mostly;
static u64 snooze_timeout;
static bool snooze_timeout_en;
static u64 snooze_timeout __read_mostly;
static bool snooze_timeout_en __read_mostly;
static int snooze_loop(struct cpuidle_device *dev,
struct cpuidle_driver *drv,

8
drivers/cpuidle/cpuidle-pseries.c
View File

@ -25,10 +25,10 @@ struct cpuidle_driver pseries_idle_driver = {
.owner = THIS_MODULE,
};
static int max_idle_state;
static struct cpuidle_state *cpuidle_state_table;
static u64 snooze_timeout;
static bool snooze_timeout_en;
static int max_idle_state __read_mostly;
static struct cpuidle_state *cpuidle_state_table __read_mostly;
static u64 snooze_timeout __read_mostly;
static bool snooze_timeout_en __read_mostly;
static inline void idle_loop_prolog(unsigned long *in_purr)
{